1993 Chevy Cheyenne 6 cyl Two Wheel Drive Automatic
Yesterday when I turned off my ignition, I heard a knocking noise for a few seconds. It seemed to be coming from under the dash toward the passenger side. Same thing when I cranked up this morning. Again it only lasted a few seconds. When I returned home and turned off the truck the knocking resumed for a few seconds then stopped. It is pretty loud. Otherwise the truck runs great. Any ideas?